BS EN 60811-201-2012 Electric and optical fibre cables Test methods for non-metallic materials General tests Measurement of insulation thickness《电缆和光缆 非金属材料的试验方法 通用试验 绝缘厚度测量》.pdf

1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationElectric and optical fibre cables Test methods for non-metallic materialsPart 201: General tests Measurement of insulation thicknessBS EN 60811-201:2012National forewordThis Brit

2、ish Standard is the UK implementation of EN 60811-201:2012. It isidentical to IEC 60811-201:2012.In the UK, the relationship between the supersessions of BS EN 60811 seriescan be summarized as follows.Superseded standards are withdrawnThe UK participation in its preparation was entrusted by Technica

3、l CommitteeGEL/20, Electric cables, to Subcommittee GEL/20/17, Electric Cables - Lowvoltage.A list of organizations represented on this committee can be obtained onrequest to its secretary.This publication does not purport to include all the necessary provisions of acontract. Users are responsible f

4、or its correct application. The British Standards Institution 2012Published by BSI Standards Limited 2012ISBN 978 0 580 65304 9ICS 29.035.01; 29.060.20Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of the Standa

5、rdsPolicy and Strategy Committee on 31 July 2012.Amendments issued since publicationAmd. No. Date Text affectedBRITISH STANDARDBS EN 60811-201:2012BS EN 60811-100 together with Supersedes - -201, -202, -203, -501 BS EN 60811-1-1:1995 -301, -302, -411, -601, -602, -603, -604 BS EN 60811-5-1:2000 -401

6、, -412 BS EN 60811-1-2:1995 -402, -502, -503, -606 BS EN 60811-1-3:1995 -403, -404, -507 BS EN 60811-2-1:1998 -405, -409 BS EN 60811-3-2:1995 -406, -511, -605, -607 BS EN 60811-4-1:2004 -407, -408, -410, -510, -512, -513 BS EN 60811-4-2:2004 -504, -505, -506 BS EN 60811-1-4:1995 -508, -509 BS EN 608

7、11-3-1:1995EUROPEAN STANDARD EN 60811-201 NORME EUROPENNE EUROPISCHE NORM June 2012 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Management Centre: Avenue Marnix 17, B - 1000 Brussels

8、2012 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 60811-201:2012 E ICS 29.035.01; 29.060.20 Supersedes EN 60811-1-1:1995 (partially) + A1:2001 (partially)English version Electric and optical fibre cables - Test methods for non-

9、metallic materials - Part 201: General tests - Measurement of insulation thickness (IEC 60811-201:2012) Cbles lectriques et fibres optiques - Mthodes dessai pour les matriaux non-mtalliques - Partie 201: Essais gnraux - Mesure de lpaisseur des enveloppes isolantes (CEI 60811-201:2012) Kabel, isolier

10、te Leitungen und Glasfaserkabel - Prfverfahren fr nichtmetallene Werkstoffe - Teil 201: Allgemeine Prfungen Messung der Wanddicke von Isolierhllen (IEC 60811-201:2012) This European Standard was approved by CENELEC on 2012-04-16. CENELEC members are bound to comply with the CEN/CENELEC Internal Regu

11、lations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CENELEC

12、member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official ver

13、sions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portuga

14、l, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. EN 60811-201:2012 - 2 - Foreword The text of document 20/1280/FDIS, future edition 1 of IEC 60811-201, prepared by IEC/TC 20 “Electric cables“ was submitted to the IEC-CENELEC parallel vote and approved by CEN

15、ELEC as EN 60811-201:2012. The following dates are fixed: latest date by which the document has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2013-01-16 latest date by which the national standards conflicting with the document have to be

16、 withdrawn (dow) 2015-04-16 This document supersedes 8.1 of EN 60811-1-1:1995 + A1:2001 (partially). Full details of the replacements are shown in Annex A of EN 60811-100:2012. There are no technical changes with respect to EN 60811-1-1:1995 + A1:2001, but see the Foreword to EN 60811-100:2012. This

17、 standard is to be read in conjunction with EN 60811-100. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CENELEC and/or CEN shall not be held responsible for identifying any or all such patent rights. This standard covers the Pri

18、nciple Elements of the Safety Objectives for Electrical Equipment Designed for Use within Certain Voltage Limits (LVD - 2006/95/EC) Endorsement notice The text of the International Standard IEC 60811-201:2012 was approved by CENELEC as a European Standard without any modification. BS EN 60811-201:20

19、12- 3 - EN 60811-201:2012 Annex ZA (normative) Normative references to international publications with their corresponding European publications The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references,

20、only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. NOTE When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD applies. Publication Year Title EN/HD Yea

21、r IEC 60811-100 2012 Electric and optical fibre cables - Test methods for non-metallic materials - Part 100: General EN 60811-100 2012 BS EN 60811-201:2012 2 60811-201 IEC:2012 CONTENTS INTRODUCTION . 5 1 Scope . 6 2 Normative references . 6 3 Terms and definitions . 6 4 Test method . 6 4.1 General

22、. 6 4.2 Measuring equipment 6 4.3 Sample and test pieces preparation. 7 4.4 Measuring procedure . 7 4.5 Evaluation of the measurement results 7 5 Test report 7 Bibliography 11 Figure 1 Measurement of insulation (circular inner profile) . 8 Figure 2 Measurement of insulation thickness (sectoral-shape

23、d conductor) . 8 Figure 3 Measurement of insulation thickness (stranded conductor) . 9 Figure 4 Measurement of insulation thickness (stranded conductor) . 9 Figure 5 Measurement of insulation thickness (uneven outer profile) . 10 Figure 6 Measurement of insulation thickness (twin flat non-sheathed c

24、able) . 10 BS EN 60811-201:201260811-201 IEC:2012 5 INTRODUCTION The IEC 60811 series specifies the test methods to be used for testing non-metallic materials of all types of cables. These test methods are intended to be referenced in standards for cable construction and for cable materials. NOTE 1

25、Non-metallic materials are typically used for insulating, sheathing, bedding, filling or taping within cables. NOTE 2 These test methods are accepted as basic and fundamental and have been developed and used over many years principally for the materials in all energy cables. They have also been wide

26、ly accepted and used for other cables, in particular optical fibre cables, communication and control cables and cables for ships and offshore applications. BS EN 60811-201:2012 6 60811-201 IEC:2012 ELECTRIC AND OPTICAL FIBRE CABLES TEST METHODS FOR NON-METALLIC MATERIALS Part 201: General tests Meas

27、urement of insulation thickness 1 Scope This Part 201 of IEC 60811 gives the methods for measuring the insulation thicknesses which apply to the most common types of insulating compounds (cross-linked, PVC, PE, PP, etc.). 2 Normative references The following documents, in whole or in part, are norma

28、tively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. IEC 60811-100:2012, Electric and optical fibre cables Test met

29、hods for non-metallic materials Part 100: General 3 Terms and definitions For the purposes of this document, the terms and definitions given in IEC 60811-100 apply. 4 Test method 4.1 General This part of IEC 60811 shall be used in conjunction with IEC 60811-100. Unless otherwise specified, tests sha

30、ll be carried out at room temperature. Measurement of insulation thickness may be required as an individual test, or as a step in the procedure for carrying out other tests, such as the determination of mechanical properties. In each case, the method of selecting samples shall be in accordance with

31、the relevant cable standard. 4.2 Measuring equipment A measuring microscope or a profile projector of at least 10 x magnification or an optical digital image analyser shall be used. These two types of equipment shall allow a reading of 0,01 mm and an estimated reading to three decimal places when me

32、asuring insulation with a specified thickness less than 0,5 mm. In case of doubt, the measuring microscope shall be taken as the reference method. BS EN 60811-201:201260811-201 IEC:2012 7 4.3 Sample and test pieces preparation Any covering shall be removed from the insulation, and the conductor(s),

33、together with separator (if any) shall be withdrawn, care being taken to avoid damage to the insulation. Semi-conducting inner and/or outer layers, if bonded to the insulation, shall not be removed. Each test piece shall consist of a thin slice of insulation. The slice shall be cut with a suitable d

34、evice along a plane perpendicular to the longitudinal axis of the conductor. The cores of non-sheathed flat cables shall not be separated. If the insulation carries an indented marking, thus giving rise to a local reduction in thickness, the test piece shall be taken so as to include such marking. 4

35、.4 Measuring procedure The test piece shall be placed under the measuring equipment with the plane of the cut perpendicular to the optical axis. a) When the inner profile of the test piece is of circular form, six measurements shall be made radially, each approximately 60, as shown in Figure 1. For

36、sector-shaped cores, six measurements shall be made as shown in Figure 2. b) When the insulation is taken from a stranded conductor, six measurements shall be made radially as shown in Figures 3 and 4. c) When the outer profile shows unevenness, the measurement shall be carried out as shown in Figur

37、e 5. d) When there are unremovable screening layers under and/or over the insulation, they shall be excluded from the measurements. e) If unremovable screening layers are present under and/or over an opaque insulation, a measuring microscope shall be used. f) Flat non-sheathed cables shall be measur

38、ed according to Figure 6, the thickness of insulation in the direction of the other core being taken as half the distance between the conductors. In all cases, the first measurement shall be taken where the insulation is thinnest. If the insulation carries an indented marking, this shall not be incl

39、uded in the measurements made for the calculation of mean thickness. In any case, the thickness at the position of the indented marking shall comply with the minimum requirement specified in the relevant standard. The readings shall be made in millimetres to two decimal places if the specified thick

40、ness is 0,5 mm or above and to three estimated decimal places if the specified thickness of the insulation is less than 0,5 mm. 4.5 Evaluation of the measurement results The results shall be evaluated as specified in the test requirements of the relevant cable standard. 5 Test report The test report

41、 shall be in accordance with that given in IEC 60811-100 and shall include measuring equipment specifications. BS EN 60811-201:2012 8 60811-201 IEC:2012 Key tmminimum thickness Figure 1 Measurement of insulation (circular inner profile) Key tmminimum thickness Figure 2 Measurement of insulation thic

42、kness (sectoral-shaped conductor) IEC 245/12 IEC 246/12 BS EN 60811-201:201260811-201 IEC:2012 9 Key tmminimum thickness Figure 3 Measurement of insulation thickness (stranded conductor) Key tmminimum thickness Figure 4 Measurement of insulation thickness (stranded conductor) IEC 247/12 IEC 248/12 B

43、S EN 60811-201:2012 10 60811-201 IEC:2012 Key tmminimum thickness Figure 5 Measurement of insulation thickness (uneven outer profile) Key tmminimum thickness Figure 6 Measurement of insulation thickness (twin flat non-sheathed cable) IEC 249/12 IEC 250/12 BS EN 60811-201:201260811-201 IEC:2012 11 Bi

44、bliography IEC 60811-1-1:1993, Common test methods for insulating and sheathing materials of electric cables Part 1: Methods for general application Section 1: Measurement of thickness and overall dimensions Tests for determining the mechanical properties (withdrawn) _ BS EN 60811-201:2012This page

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